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Finding the Fourth Proportional to 443,491.89, 665,500.28 and 163,205.97

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Solution

The fourth proportional to 443,491.89, 665,500.28 and 163,205.97 is: 244,905.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,491.89 : 665,500.28 = 163,205.97 : x
  2. Step 2: Convert to fraction form
    443,491.89/665,500.28 = 163,205.97/x
  3. Step 3: Cross multiply
    443,491.89x = 665,500.28 × 163,205.97
  4. Step 4: Simplify right side
    443,491.89x = 108,613,617,916.64
  5. Step 5: Solve for x
    x = 108,613,617,916.64/443,491.89
  6. Step 6: Final answer
    x = 244,905.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.